Martin has released a new 7.01-4415 beta of the HWiNFO software at www.hwinfo.com
I hope, and think, that this addresses most of the "index" issues that have arisen.
If you have been following this saga, and have installed and setup multiple versions of the software, I have a suggestion, just to be be sure the Windows Registry is clean and reflects the current state of things.
What I would do is open the Sensor Settings dialog and go to the HWiNFO Gadget tab. Then click on the very first entry in the list, hold down CTRL and click the last entry in the list. That will select them all.
Then turn OFF "Report value in Gadget". This will "unset" all of them, and basically clear out all the registry entries. Doing this will entirely remove the HKEY_CURRENT_USER\SOFTWARE\HWiNFO64\VSB
Get out of HWiNFO and using the tray icon "Quit" the application.
You might want to reboot at this point, to force Windows to physically write all the changes it has in memory to the registry database.
Now with HWiNFO running again, go back to the Sensor Settings page, and turn ON the sensor elements you want to export to Rainmeter. That might just be a handful of them, or you can select them all if you want.
That will repopulate the HKEY_CURRENT_USER\SOFTWARE\HWiNFO64\VSB
key in the registry, using all the latest and greatest values from HWiNFO.
Then just double-check that you have the right sensor element "index" numbers set in your skins.
I'm not saying this process is absolutely necessary, but there have been several changes to how Martin worked at getting the "persistent" state of the indexes to work right, and I personally feel like its time to ensure things are "clean".